Calculation and observation of thermal electrostatic noise in solar wind plasma

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Abstract

Calculations, both approximate algebraic and numerical, have been carried out for the noise due to electrostatic waves incident on a dipole antenna. The noise is calculated both for a thermal equilibrium plasma, and one having several components at different temperatures. The results are compared with measurements from the IMP-6 satellite. In various frequency ranges, the noise power is dominated by Langmuir oscillations, by electron acoustic waves and by ion acoustic waves. The measurements are consistent with all of these, although the ion waves are not definitely observed, due to interference from shot noise.

Original languageEnglish (US)
Article number005
Pages (from-to)735-751
Number of pages17
JournalPlasma Physics
Volume23
Issue number8
DOIs
StatePublished - Dec 1 1981

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